Commit Graph

17 Commits

Author SHA1 Message Date
Nathan James b859c39c40
[clang-tidy] Add a Standalone diagnostics mode to clang-tidy
Adds a flag to `ClangTidyContext` that is used to indicate to checks that fixes will only be applied one at a time.
This is to indicate to checks that each fix emitted should not depend on any other fixes emitted across the translation unit.
I've currently implemented the `IncludeInserter`, `LoopConvertCheck` and `PreferMemberInitializerCheck` to use these support these modes.

Reasoning behind this is in use cases like `clangd` it's only possible to apply one fix at a time.
For include inserter checks, the include is only added once for the first diagnostic that requires it, this will result in subsequent fixes not having the included needed.

A similar issue is seen in the `PreferMemberInitializerCheck` where the `:` will only be added for the first member that needs fixing.

Fixes emitted in `StandaloneDiagsMode` will likely result in malformed code if they are applied all together, conversely fixes currently emitted may result in malformed code if they are applied one at a time.
For this reason invoking `clang-tidy` from the binary will always with `StandaloneDiagsMode` disabled, However using it as a library its possible to select the mode you wish to use, `clangd` always selects `StandaloneDiagsMode`.

This is an example of the current behaviour failing
```lang=c++
struct Foo {
  int A, B;
  Foo(int D, int E) {
    A = D;
    B = E; // Fix Here
  }
};
```
Incorrectly transformed to:
```lang=c++
struct Foo {
  int A, B;
  Foo(int D, int E), B(E) {
    A = D;
     // Fix Here
  }
};
```
In `StandaloneDiagsMode`, it gets transformed to:
```lang=c++
struct Foo {
  int A, B;
  Foo(int D, int E) : B(E) {
    A = D;
     // Fix Here
  }
};
```

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D97121
2022-04-16 09:53:35 +01:00
Alexander Kornienko 1968a6155f [clang-tidy] Fix IncludeInserter usage example in a comment. 2020-10-12 15:05:42 +02:00
Alexander Kornienko fe4715c47f Remove old create(MainFile)?IncludeInsertion overloads
Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D89117
2020-10-09 15:24:57 +02:00
Alexander Kornienko fdfe324da1 [clang-tidy] IncludeInserter: allow <> in header name
This adds a pair of overloads for create(MainFile)?IncludeInsertion methods that
use the presence of the <> in the file name to control whether the #include
directive will use angle brackets or quotes. Motivating examples:
https://reviews.llvm.org/D82089#inline-789412 and
https://github.com/llvm/llvm-project/blob/master/clang-tools-extra/clang-tidy/modernize/MakeSmartPtrCheck.cpp#L433

The overloads with the IsAngled parameter can be removed after the users are
updated.

Update usages of createIncludeInsertion.

Update (almost all) usages of createMainFileIncludeInsertion.

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D85666
2020-09-28 15:14:04 +02:00
Nathan James 13c9bbc28e
[clang-tidy] Refactor IncludeInserter
Simplified how `IncludeInserter` is used in Checks by abstracting away the SourceManager and PPCallbacks inside the method `registerPreprocessor`.
Changed checks that use `IncludeInserter` to no longer use a `std::unique_ptr`, instead the IncludeInserter is just a member of the class thats initialized with an `IncludeStyle`.
Saving an unnecessary allocation.

This results in the removal of the field `IncludeSorter::IncludeStyle` from the checks, as its wrapped in the `IncludeInserter`.
No longer need to create an instance of the `IncludeInserter` in the registerPPCallbacks, now that method only needs to contain:
```
Inserter.registerPreprocessor(PP);
```
Also added a helper method to `IncludeInserter` called `createMainFileInclusionInsertion`, purely sugar but does better express intentions.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D83680
2020-07-27 12:48:55 +01:00
Benjamin Kramer c76edaabdd [clang-tidy] Prune dead code. NFC. 2020-06-17 21:16:59 +02:00
Nathan James 08c83ed757
[clang-tidy][NFC] Remove the double look-up on IncludeInserter
Refactor out the double lookup in `IncludeInserter` when trying to get the `IncludeSorter` for a specified `FileID`.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D82004
2020-06-17 19:48:34 +01:00
Dmitri Gribenko 282dc72c8b Remove \brief commands from doxygen comments.
Summary:
We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

  for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

[This is analogous to LLVM r331272 and CFE r331834]

Subscribers: srhines, nemanjai, javed.absar, kbarton, MaskRay, jkorous, arphaman, jfb, kadircet, jsji, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66578

llvm-svn: 369643
2019-08-22 11:32:57 +00:00
Jonas Devlieghere 1c705d9c53 [clang-tools-extra] Migrate llvm::make_unique to std::make_unique
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.

Differential revision: https://reviews.llvm.org/D66259

llvm-svn: 368944
2019-08-14 23:52:23 +00:00
Alexander Kornienko b6c4db9981 [clang-tidy] Move all checks to the new registerPPCallbacks API
llvm-svn: 356796
2019-03-22 18:58:12 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Alexander Kornienko 3444cb9993 [clang-tidy] Fixed code sample in a comment. NFC
llvm-svn: 345984
2018-11-02 15:29:37 +00:00
Alexander Kornienko 8f810c3cdc [clang-tidy] .reset(new X) -> make_unique<X>() in a comment. NFC
llvm-svn: 345979
2018-11-02 15:03:43 +00:00
Alexander Kornienko c9c8290251 [clang-tidy] Fix doxygen errors. NFC.
llvm-svn: 272994
2016-06-17 11:43:33 +00:00
Etienne Bergeron 8d73de9eac [clang-tidy] Cleanups utils files
Summary:
Cleanup some code by using appropriate APIs.
Some coding style cleanups.

There is no behavior changes.

 - Function `IncludeSorter::CreateFixIt` can be replaced by `FixItHint::CreateReplacement`.
 - Function `cleanPath` is a wrapper for `llvm::sys::path::remove_dots`.

Reviewers: alexfh

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D20279

llvm-svn: 269656
2016-05-16 14:34:20 +00:00
Etienne Bergeron 2a4c00f243 [clang-tidy] Cleanup namespace in utils folder.
Summary:
This is a step forward cleaning up the namespaces in clang-tidy/utils.
There is no behavior change.

Reviewers: alexfh

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19819

llvm-svn: 268356
2016-05-03 02:54:05 +00:00
Alexander Kornienko 5f252cac51 [clang-tidy] Move IncludeSorter.* and IncludeInserter.* to clang-tidy/utils/
This is better structurally and it also fixes a linker error in the configure
build.

llvm-svn: 245052
2015-08-14 14:31:31 +00:00